package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.AuthServiceConstant;
import com.atguigu.common.exception.BizCodeEnume;
import com.atguigu.common.utils.R;
import com.atguigu.common.vo.MemberRespVo;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.gulimall.auth.feign.ThirdPateFeignService;
import com.atguigu.gulimall.auth.vo.UserLoginVo;
import com.atguigu.gulimall.auth.vo.UserRegistVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * @Author ziChuan
 * @Create: 2021/10/19 18:57
 * @Description:
 */
@Controller
public class LoginController {

    @Autowired
    ThirdPateFeignService thirdPateFeignService;

    @Autowired
    StringRedisTemplate redisTemplate;

    @Autowired
    MemberFeignService feignService;

    @ResponseBody
    @GetMapping("/sms/sendcode")
    public R sendCode(@RequestParam("phone") String phone){

        String redisCode = redisTemplate.opsForValue().get(AuthServiceConstant.SMS_CODE_CACHE_PREFIX + phone);
        if (!StringUtils.isEmpty(redisCode)){
            long l = Long.parseLong(redisCode.split("_")[1]);
            if (System.currentTimeMillis()-l<60000){
                return R.error(BizCodeEnume.SMS_CODE_EXCEPTION.getCode(),BizCodeEnume.SMS_CODE_EXCEPTION.getMsg());
            }
        }
        String code = UUID.randomUUID().toString().substring(0, 5);
        String subString = code +"_"+System.currentTimeMillis();
        redisTemplate.opsForValue().set(AuthServiceConstant.SMS_CODE_CACHE_PREFIX+phone,subString,10, TimeUnit.MINUTES);
        thirdPateFeignService.sendCode(phone,code);
        return R.ok();
    }

    /**
     * RedirectAttributes 重定向携带数据  利用Session原理，将数据放到session中
     * @param vo
     * @param result
     * @param redirectAttributes
     * @return
     */
    @PostMapping("/regist")
    public String regist(@Valid UserRegistVo vo, BindingResult result,
                         RedirectAttributes redirectAttributes){
        if (result.hasErrors()){
            Map<String, String> errors = result.getFieldErrors().stream().collect(Collectors.toMap(FieldError::getField,FieldError::getDefaultMessage));
            //model.addAttribute("errors",errors);
            redirectAttributes.addFlashAttribute("errors",errors);
            //return "forward:/reg.html";  //转发 默认是get方式访问
            //return "reg";
            return "redirect:/reg.html";
        }
        //调用远程服务进行注册
        String code = vo.getCode();
        String s = redisTemplate.opsForValue().get(AuthServiceConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
        if (!StringUtils.isEmpty(s)){
            if (code.equals(s.split("_")[0])){
                //删除验证码
                redisTemplate.delete(AuthServiceConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
                //验证码通过  进行注册
                R r = feignService.regist(vo);
                if (r.getCode()==0){//成功
                    return "redirect:/login.html";
                }else {//失败
                    Map<String,String> errors = new HashMap<>();
                    errors.put("msg",r.getData("msg",new TypeReference<String>(){}));
                    redirectAttributes.addFlashAttribute("errors",errors);
                    return "redirect:/reg.html";
                }
            }else {
                Map<String,String> errors = new HashMap<>();
                errors.put("errors","验证码错误");
                redirectAttributes.addFlashAttribute("errors",errors);
                return "redirect:/reg.html";
            }
        }else{
            Map<String,String> errors = new HashMap<>();
            errors.put("errors","验证码错误");
            redirectAttributes.addFlashAttribute("errors",errors);
            return "redirect:/reg.html";
        }
    }

    @GetMapping("/login.html")
    public String loginPage(HttpSession session){
        Object attribute = session.getAttribute(AuthServiceConstant.LOGIN_USER);
        if (attribute == null){
            return "login";
        }else {
            return "redirect:http://127.0.0.1:10001/login.html";
        }
    }

    @PostMapping("/login")
    public String login(UserLoginVo vo, RedirectAttributes redirectAttributes,
                        HttpSession session){
        //远程登录
        R login = feignService.login(vo);
        if (login.getCode()==0){
            MemberRespVo data = login.getData("data", new TypeReference<MemberRespVo>() {
            });
            //成功放到session
            session.setAttribute(AuthServiceConstant.LOGIN_USER,data);
            return "redirect:http://gulimall.com";
        }else {
            Map<String,String> errors = new HashMap<>();
            errors.put("msg",login.getData("msg",new TypeReference<String>(){}));
            redirectAttributes.addFlashAttribute("errors",errors);
            // return "redirect:http://gulimall.com/login.html";
            return "redirect:http://127.0.0.1:20000/login.html";
        }

    }
}

